WO2011160556A1 - Carbon powder cartridge for laser printer - Google Patents

Carbon powder cartridge for laser printer Download PDF

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Publication number
WO2011160556A1
WO2011160556A1 PCT/CN2011/075743 CN2011075743W WO2011160556A1 WO 2011160556 A1 WO2011160556 A1 WO 2011160556A1 CN 2011075743 W CN2011075743 W CN 2011075743W WO 2011160556 A1 WO2011160556 A1 WO 2011160556A1
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WO
WIPO (PCT)
Prior art keywords
support shaft
toner
powder
powder feeding
roller
Prior art date
Application number
PCT/CN2011/075743
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French (fr)
Chinese (zh)
Inventor
李连富
Original Assignee
珠海天威飞马打印耗材有限公司
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Publication of WO2011160556A1 publication Critical patent/WO2011160556A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
    • G03G15/0889—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for agitation or stirring
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit

Definitions

  • the present invention relates to a toner cartridge for a laser printer, which comprises a developing roller, a powder feeding roller, a powder discharging knife, a powder feeding frame and a toner hopper, and the toner contained in the toner hopper is arranged by a developing roller according to a preset layout.
  • the electrostatic latent image area carried on the surface of the photosensitive drum is applied to convert the electrostatic latent image into a visual image displayed by a developer such as toner.
  • the present invention is based on a Chinese utility model patent application filed on Jun. 22, 2010, and the application number is 201020231583.6, the content of which is incorporated herein by reference.
  • Image forming apparatuses usually include a variety of models such as copiers, laser printers, facsimile machines, ribbon printers, and LED printers.
  • the toner is the final imaging medium for realizing the conversion of the image ⁇ ⁇ light ⁇ ⁇ electricity ⁇ ⁇ map.
  • the developing roller is disposed near the photosensitive drum to form an image on the photosensitive drum after the toner jumps over a very small gap between the developing roller and the photosensitive drum by a contact form or a jump pattern.
  • the toner transported by the developing roller comes from the toner hopper.
  • the toner storage capacity of the toner hopper is limited by the rated volume of the storage body. Therefore, the toner in the toner hopper must be replenished after it is used up, or the toner cartridge used to hold the toner can be recycled. Play the other functions of the toner cartridge such as the developing roller, the powder feeding roller, the powder discharging knife, the powder feeding frame, the toner cartridge, and the carrier.
  • the main functional blocks of the laser printer include a laser scanning unit, a photoelectric conversion unit, a charging unit, a developing unit, a transfer unit, and a fixing unit.
  • the main components of the laser scanning unit are a laser generator and a light reflection transmission system composed of optical elements such as prisms and lenses.
  • the main component of the photoelectric conversion unit is a photosensitive drum.
  • the charging unit mainly includes a positive charge grid-controlled corona charging roller or other forms of charging roller.
  • the developing unit is composed of a powder storage chamber for storing toner, and a developing chamber.
  • the developing roller, the powder feeding roller, and the powder discharging knife are disposed in the developing chamber.
  • the powder feeding rack and the toner hopper together form a powder storage chamber.
  • the transfer unit mainly includes a transfer roller.
  • the fixing unit is composed of a heat roller and a pressure roller.
  • a common toner cartridge or process cartridge usually includes a photoelectric conversion unit, a charging unit, a developing unit, and the like, which are functions of a light-to-electricity-to-image conversion function.
  • This type of construction generally obtains a multi-functional integrated toner cartridge. Or process the box.
  • the photoelectric conversion unit and the charging unit are directly disposed on the laser printer main unit, and the toner cartridge includes only the developing unit. This configuration can only obtain a single development function.
  • the toner cartridge, such a single-function toner cartridge is matched to the laser printer mainframe in the form of an assembly.
  • the surface of the photosensitive drum is uniformly charged by the charging roller.
  • the laser scanner emits a modulated laser beam containing image information to the photosensitive drum, and after the laser irradiation, forms a static voltage map having a different distribution on the surface of the photosensitive drum, that is, an electrostatic latent image corresponding to the image to be reproduced.
  • the toner from the developing roller is in turn adsorbed on the surface of the photosensitive drum, and after covering the electrostatic latent image, it is converted into a visible image which can be visually observed.
  • the photosensitive drum rotates, the visible image formed by the toner on the surface of the photosensitive drum is transposed to the position where the transfer roller is located.
  • the toner in the form of visible image is transferred onto the surface of the recording medium such as paper by the transfer voltage of the transfer roller, and then the visible image on the recording medium is heated and pressurized by the heating roller and the pressure roller.
  • the toner penetrates into the fiber layer of the recording medium, and the visible image formed by the carbon powder is permanently cured on the recording medium.
  • the toner is the only material carrier for forming an image, which means that toner is in operation.
  • the toner in the warehouse is in the dynamic change of continuous consumption.
  • the toner cartridge that uses the mechanical transmission to detect the toner resistance and then converts into the toner consumption state to realize the monitoring of the toner reserve condition is too resistant due to the resistance of the powder feeding frame in the toner cartridge, so that the It is difficult to achieve a sensitive detection of the toner reserve condition by the way the powder frame conveys the toner reserve information.
  • the object of the present invention is to provide a toner cartridge for a laser printer capable of sensitively detecting the state of toner storage, in view of the problem that the toner storage state of the above-described toner cartridge is insensitive.
  • a toner cartridge for a laser printer designed by the present invention includes a developing roller, a powder feeding roller, a powder discharging knife, a powder feeding frame, and a toner hopper.
  • the developing roller and the powder feeding roller are attached to the casing of the toner cartridge in such a manner that their axial directions are parallel to each other.
  • the toner cartridge is a hollow cavity for holding toner in the casing.
  • the powder feeding frame comprises a supporting shaft and a powder feeding plate fixedly connected to the supporting shaft through the spokes.
  • the powder feeding frame is supported in the toner hopper in such a manner that its support axis is parallel to the central axis of the developing roller.
  • the powder feed plate extends in a direction parallel to the support shaft.
  • the appearance of the powder feed plate is triangular.
  • One side of the triangle is the outer edge portion of the extension of the radius of the support shaft.
  • the apex angle of the edge points to the direction of rotation of the support shaft.
  • the invention aims at the problem that the powder feeding plate is insensitive to detecting the state of the toner reserve due to too much resistance, and the design of the powder feeding plate on the axial cross section of the support shaft is triangular, and one side of the triangle is maintained at the support.
  • the outer edge of the shaft radius extension line in its own radial direction is such that the apex angle of the edge is directed to the direction of rotation of the support shaft.
  • Figure 1 is a perspective view of a toner cartridge for a laser printer of the present invention
  • Figure 2 is a partial perspective view of a toner cartridge for a laser printer of the present invention
  • Figure 3 is a partial perspective view of a toner cartridge for a laser printer of the present invention.
  • Figure 4 is a partial perspective view of a toner cartridge for a laser printer of the present invention.
  • Figure 5 is a partial perspective view of a toner cartridge for a laser printer of the present invention.
  • Figure 6 is a perspective view of a transmission gear of a toner cartridge for a laser printer of the present invention.
  • Figure 7 is a perspective view of a drive plate of a toner cartridge for a laser printer of the present invention.
  • Figure 8 is a perspective view of the drive plate of the toner cartridge for a laser printer of the present invention.
  • FIG. 1 to 8 there are shown perspective views of a toner cartridge for a laser printer and members thereof according to the present invention at different viewing angles.
  • a hollow toner cartridge 101 for accommodating the toner therein is disposed, and the powder outlet 102 for discharging the toner contained in the toner cartridge 101 is disposed adjacent to the powder outlet 102.
  • the powder feed roller 103 is located at the developing roller 104 in the vicinity of the powder feed roller 103.
  • the powder outlet 102, the powder feed roller 103, and the developing roller 104 are sequentially arranged on the casing 105 of the toner cartridge 100 in the same direction opposite to the toner cartridge 101, starting from the toner cartridge 101.
  • the powder feed roller 103 and the developing roller 104 are attached to the casing 105 in such a manner that their axial directions are parallel to each other.
  • the powder discharging knife 106 is mounted on the casing 105 at a specific position as the upper half of the powder discharging port 102, and the cutting edge for adjusting the thickness of the toner on the surface of the developing roller is kept in elastic contact with the roller surface of the developing roller 104.
  • the powder feed rack 107 is composed of a support shaft 108, a spoke 109, and a powder feed plate 110.
  • One end of the spoke 109 is fixedly coupled to the support shaft 108, and the other end is fixedly coupled to the powder feeding plate 110.
  • the axial direction of the support shaft 108 is kept parallel to the axial direction of the developing roller 104.
  • the powder feeding plate 110 extends in a direction parallel to the central axis of the support shaft 108 until its both end portions are almost close to the corresponding inner walls of the toner hopper 101. In the axial cross section of the support shaft 108, the cross section of the powder feed plate 110 appears as a triangle.
  • One side of the triangle is the outer edge portion of the radius extension of the support shaft 108 in its own radial direction.
  • the apex angle of the pair is directed on the circumference on which it is located toward the direction of rotation of the support shaft 108, that is, the direction in which the toner is pushed into the powder outlet 102.
  • the respective opposite ends of the developing roller 104, the powder feeding roller 103, and the powder feeding frame 107 protrude to the outside of the casing 105 or the toner hopper 101, and It is connected to a corresponding gear in the transmission gear set 111.
  • the powder feeding frame 107 is connected to the corresponding transmission gear 112 of the transmission gear set 111.
  • the transmission gear set 111 is subjected to a torque transmitted from the laser printer to drive the developing roller 104, the powder feeding roller 103 and the powder feeding frame 107 to form respective rotations, thereby completing the commitment of the developing roller 104 to the photosensitive drum (not shown).
  • the toner is disposed, and the powder feeding roller 103 senses the toner transfer by the developing roller 104 and the state of the toner reserve state assumed by the powder feeding frame 107, agitates the carbon powder to make it fluffy, and transports the toner into the powder discharging port 102.
  • the task of toner sensing, agitation and transfer carried by the powder feeding rack 107 requires other components to be completed. These components include a transmission gear 112, a drive plate 113, and a torsion spring 114.
  • the transmission gear 112 has a configuration of a circular frame 115, and a flange 117 and a lock block 118 are disposed on the web 116 in the frame.
  • the drive plate 113 is a circular plate having a fastener 120 disposed on the plate surface and a hollow drive window 119.
  • the transmission gear 112 is rotatably mounted on the end of the support shaft 108 that protrudes outside the toner hopper 101, and the transmission plate 113 is fixedly mounted to the end of the support shaft 108 that protrudes outside the toner hopper 101.
  • the driving plate 113 is embedded in the circular frame 115 of the transmission gear 112.
  • the torsion spring 114 is sleeved on the end of the supporting shaft 108 extending from the outside of the toner cartridge 101. One of the twisting arms of the torsion spring 114 is pressed against the buckle.
  • the member 117 is attached to the fastener 120.
  • the rotation of the transmission gear 112 by the laser printer main body first applies a force to the torsion spring 114.
  • the powder feeding plate 110 receives less toner resistance.
  • the torsion spring 114 can overcome the resistance to drive the transmission plate 113 to rotate, thereby driving the support shaft 108 to rotate the powder feeding frame 107, and the powder conveying frame 107 forms a nearly synchronous rotation with the transmission gear 112 when the toner cartridge 101 has less toner.
  • the state is transmitted from the support shaft 108 to the detecting plate 121 disposed at the other end of the support shaft 108, and then transmitted to the laser printer main body to form an indication or judgment of less toner and replenishing toner; the content in the toner cartridge 101
  • the toner powder received by the powder feeding plate 110 has a large resistance, and the torsion force generated by the torsion spring 114 cannot drive the transmission plate 113, and the torsion spring 114 is pressed and contracted until the transmission gear 112 passes through the transmission window 119.
  • the locking block 118 abuts against the window frame of the transmission window 119 to drive the support shaft 108 to rotate the powder feeding frame 107.
  • the powder conveying frame 107 forms a hysteresis with the transmission gear 112 when the toner cartridge 101 has a large amount of toner.
  • Rotating state Support shaft 108 is transmitted to the detection plate 121 is provided on the other end of the support shaft 108, and then further transmitted to the laser printer main body, is formed toner filling or more instructions or determined, and thus keep the laser printer is in the normal standby state.
  • the invention is directed to the problem that the toner powder feeding plate for the laser printer is insensitive to detecting the state of the toner reserve due to too much resistance, and the design of the powder feeding plate on the axial cross section of the support shaft is triangular, and the One side of the triangle is located at the outer edge of the extension of the radius of the support shaft in its own radial direction, so that the apex angle of the edge is directed to the direction of rotation of the support shaft.
  • the powder feeding plate will pass through the toner in a sharp angle puncture manner, and the task of stirring and conveying the carbon powder can still be realized by the pushing action of the powder feeding plate, which senses the toner resistance.
  • the task is still achieved by the resistance of the powder feeding board.
  • the excessive resistance of the conveying board to the transmission characteristics is dissipated due to the operation mode of the sharp-point puncture, and the magnetic sensitive powder reserve state is achieved. purpose.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Cleaning In Electrography (AREA)

Abstract

A carbon powder cartridge (100) for the laser printer comprises a developing roller (104), a powder supply roller (103), a layer-thickness regulator, a powder supply rack (107), and a carbon powder bin (101), wherein the developing roller (104) and the powder supply roller (107) are axially arranged on the cartridge body (105) of the carbon powder cartridge (100) in parallel. The carbon powder bin (101) is a hollow cavity for containing the carbon powder in the cartridge body (105). The powder supply rack (107) comprises a support shaft (108) and a powder supply plate (110) fixedly connected with the support shaft (108) through a spoke (109). The powder supply rack (107) is supported in the carbon powder bin (101) in the mode that the support shaft (108) is parallel to the middle shaft of the developing roller (104). The powder supply plate (110) extends in the direction parallel to the support shaft (108). The appearance of the powder supply plate (110) is in a triangular shape on the axial cross section of the support shaft (108). One edge of the triangle is the outer edge part of the radius extension line of the support shaft (108), and the top angle which the one edge faces points to the rotary advancing direction of the support shaft (108).

Description

激光打印机用碳粉盒  Toner cartridge for laser printer 技术领域Technical field
本发明涉及一种激光打印机用碳粉盒，它包括显影辊、送粉辊、出粉刀、送粉架和碳粉仓，并通过显影辊把碳粉仓中容纳的碳粉按照预设布局敷设于感光鼓表面承载的静电潜像区域，使静电潜像转换成由碳粉之类显影剂所显示的可视化图像。本发明基于申请日为2010年06月22日、申请号为201020231583.6的中国实用新型专利申请，该申请的内容作为与本发明密切相关的参考文献引入本文。 The present invention relates to a toner cartridge for a laser printer, which comprises a developing roller, a powder feeding roller, a powder discharging knife, a powder feeding frame and a toner hopper, and the toner contained in the toner hopper is arranged by a developing roller according to a preset layout. The electrostatic latent image area carried on the surface of the photosensitive drum is applied to convert the electrostatic latent image into a visual image displayed by a developer such as toner. The present invention is based on a Chinese utility model patent application filed on Jun. 22, 2010, and the application number is 201020231583.6, the content of which is incorporated herein by reference.
背景技术Background technique
影像形成装置通常包括复印机、激光打印机、传真机、色带打印机以及 LED 打印机等多种机型。Image forming apparatuses usually include a variety of models such as copiers, laser printers, facsimile machines, ribbon printers, and LED printers.
在激光扫描或激光照排形式的影像形成装置中，碳粉是实现图～～光～～电～～图转换的最终成像介质。显影辊就设置于感光鼓附近，以便于碳粉通过接触形式或者跳跃形式跃过显影辊和感光鼓之间的极小间隙后在感光鼓上形成影像。由显影辊转运的碳粉来自碳粉仓。碳粉仓的储粉量受仓体额定容积的限制，因此，碳粉仓中的碳粉用尽后须要予以补充，或者对用于盛载碳粉的碳粉盒整体进行回收再生，才能再次发挥碳粉盒的其它部件例如显影辊、送粉辊、出粉刀、送粉架、碳粉仓和载体仓等的未尽功效。In the image forming apparatus of the laser scanning or laser irradiation type, the toner is the final imaging medium for realizing the conversion of the image ~ ~ light ~ ~ electricity ~ ~ map. The developing roller is disposed near the photosensitive drum to form an image on the photosensitive drum after the toner jumps over a very small gap between the developing roller and the photosensitive drum by a contact form or a jump pattern. The toner transported by the developing roller comes from the toner hopper. The toner storage capacity of the toner hopper is limited by the rated volume of the storage body. Therefore, the toner in the toner hopper must be replenished after it is used up, or the toner cartridge used to hold the toner can be recycled. Play the other functions of the toner cartridge such as the developing roller, the powder feeding roller, the powder discharging knife, the powder feeding frame, the toner cartridge, and the carrier.
作为激光影像形成装置的一类，激光打印机的主要功能块包括：激光扫描单元、光电转换单元、充电单元、显影单元、转印单元和定影单元。As a type of laser image forming apparatus, the main functional blocks of the laser printer include a laser scanning unit, a photoelectric conversion unit, a charging unit, a developing unit, a transfer unit, and a fixing unit.
激光扫描单元的主要构件是激光发生器和由棱镜、透镜等光学元件构成的光线反射透射***。The main components of the laser scanning unit are a laser generator and a light reflection transmission system composed of optical elements such as prisms and lenses.
光电转换单元的主要构件是感光鼓。The main component of the photoelectric conversion unit is a photosensitive drum.
充电单元主要包括正电荷栅控式电晕充电辊或其它形式的充电辊。The charging unit mainly includes a positive charge grid-controlled corona charging roller or other forms of charging roller.
显影单元由用于储存碳粉的储粉室、显影室构成。显影辊、送粉辊、出粉刀就设置于显影室内。送粉架和碳粉仓共同构成储粉室。The developing unit is composed of a powder storage chamber for storing toner, and a developing chamber. The developing roller, the powder feeding roller, and the powder discharging knife are disposed in the developing chamber. The powder feeding rack and the toner hopper together form a powder storage chamber.
转印单元主要包括转印辊。The transfer unit mainly includes a transfer roller.
定影单元由加热辊和加压辊构成。The fixing unit is composed of a heat roller and a pressure roller.
常见的碳粉盒或处理盒通常包括光电转换单元、充电单元、显影单元等几个承担光～～电～～图转换功能的功能块，此种构造方式一般得到多功能集成型的碳粉盒或处理盒。也有采用区分不同功能进行不同布局的方式，将光电转换单元、充电单元直接设置于激光打印机主机上，而碳粉盒则仅包括显影单元，此种构造方式仅能得到仅可实施单一显影功能的碳粉盒，此类单一功能碳粉盒与激光打印机主机之间则以总成装配的形式完成两者之间的匹配。A common toner cartridge or process cartridge usually includes a photoelectric conversion unit, a charging unit, a developing unit, and the like, which are functions of a light-to-electricity-to-image conversion function. This type of construction generally obtains a multi-functional integrated toner cartridge. Or process the box. There are also ways to distinguish different functions for different layouts. The photoelectric conversion unit and the charging unit are directly disposed on the laser printer main unit, and the toner cartridge includes only the developing unit. This configuration can only obtain a single development function. The toner cartridge, such a single-function toner cartridge, is matched to the laser printer mainframe in the form of an assembly.
在碳粉盒装入激光打印机的使用状态下，感光鼓表面由充电辊均匀地充电。激光扫描器向感光鼓发射含有图像信息并且经过调制的激光束，经激光照射后在感光鼓表面形成分布不同的静电压图，亦即与待复制图像对应的静电潜像。之后，来自显影辊的碳粉转而吸附在感光鼓表面上，覆盖静电潜像后把其转换成可以肉眼观察的可视图像。随着感光鼓的旋转，由碳粉在感光鼓表面形成的可视图像换位至转印辊所在的位置。经转印辊转印电压的作用，将可视图像形式的碳粉转印至纸张等记录介质表面上，随后经加热辊和加压辊对记录介质上的可视图像进行加热加压后，碳粉渗入记录介质的纤维层中，将碳粉形成的可视图像永久地固化于记录介质上。这样就完成了一个基本的成像工作流程。该流程反复循环运转的结果，就可以得到所需的图像。In the state in which the toner cartridge is loaded into the laser printer, the surface of the photosensitive drum is uniformly charged by the charging roller. The laser scanner emits a modulated laser beam containing image information to the photosensitive drum, and after the laser irradiation, forms a static voltage map having a different distribution on the surface of the photosensitive drum, that is, an electrostatic latent image corresponding to the image to be reproduced. Thereafter, the toner from the developing roller is in turn adsorbed on the surface of the photosensitive drum, and after covering the electrostatic latent image, it is converted into a visible image which can be visually observed. As the photosensitive drum rotates, the visible image formed by the toner on the surface of the photosensitive drum is transposed to the position where the transfer roller is located. The toner in the form of visible image is transferred onto the surface of the recording medium such as paper by the transfer voltage of the transfer roller, and then the visible image on the recording medium is heated and pressurized by the heating roller and the pressure roller. The toner penetrates into the fiber layer of the recording medium, and the visible image formed by the carbon powder is permanently cured on the recording medium. This completes a basic imaging workflow. The process repeats the cycle and the desired image is obtained.
技术问题technical problem
正如上文所描述的，对于多功能集成型的碳粉盒，或着是单一功能类型的碳粉盒，其碳粉是形成图像的唯一物质载体，这就意味着在工作过程中，碳粉仓中的碳粉处于不断消耗的动态变化之中，为了及时了解碳粉的储备状况，需要对碳粉的消耗进程实施监测。现有技术中，利用机械传动探测碳粉阻力进而转化为碳粉消耗状态以实现监测碳粉储备状况的碳粉盒，因其送粉架在碳粉仓中所受阻力太大，以致通过送粉架传送碳粉储备信息的构造方式难于达到灵敏地探测碳粉储备状况的要求。 As described above, for a multi-function integrated toner cartridge, or a single-function type toner cartridge, the toner is the only material carrier for forming an image, which means that toner is in operation. The toner in the warehouse is in the dynamic change of continuous consumption. In order to understand the reserve status of the toner in time, it is necessary to monitor the consumption process of the toner. In the prior art, the toner cartridge that uses the mechanical transmission to detect the toner resistance and then converts into the toner consumption state to realize the monitoring of the toner reserve condition is too resistant due to the resistance of the powder feeding frame in the toner cartridge, so that the It is difficult to achieve a sensitive detection of the toner reserve condition by the way the powder frame conveys the toner reserve information.
技术解决方案Technical solution
针对上述碳粉盒存在的探测碳粉储备状态不灵敏的问题，本发明目的在于提供一种能够灵敏探测碳粉储备状态的激光打印机用碳粉盒。The object of the present invention is to provide a toner cartridge for a laser printer capable of sensitively detecting the state of toner storage, in view of the problem that the toner storage state of the above-described toner cartridge is insensitive.
为达至上述目的，采用本发明设计的激光打印机用碳粉盒包括显影辊、送粉辊、出粉刀、送粉架和碳粉仓。显影辊和送粉辊以其轴向相互平行的方式装设于碳粉盒的盒体上。碳粉仓是盒体内用于盛装碳粉的中空的空腔。送粉架包括支撑轴和通过辐条同支撑轴固定连接的送粉板。送粉架以其支撑轴平行于显影辊中轴的方式支承于碳粉仓中。送粉板在平行于支撑轴的方向上延伸。在支撑轴的轴向横截面上，送粉板的外观呈三角形。该三角形的一条边是支撑轴半径延伸线的外沿部分。该边所对的顶角指向支撑轴的旋转前行方向。To achieve the above object, a toner cartridge for a laser printer designed by the present invention includes a developing roller, a powder feeding roller, a powder discharging knife, a powder feeding frame, and a toner hopper. The developing roller and the powder feeding roller are attached to the casing of the toner cartridge in such a manner that their axial directions are parallel to each other. The toner cartridge is a hollow cavity for holding toner in the casing. The powder feeding frame comprises a supporting shaft and a powder feeding plate fixedly connected to the supporting shaft through the spokes. The powder feeding frame is supported in the toner hopper in such a manner that its support axis is parallel to the central axis of the developing roller. The powder feed plate extends in a direction parallel to the support shaft. On the axial cross section of the support shaft, the appearance of the powder feed plate is triangular. One side of the triangle is the outer edge portion of the extension of the radius of the support shaft. The apex angle of the edge points to the direction of rotation of the support shaft.
有益效果Beneficial effect
本发明针对送粉板因受阻力太大而致探测碳粉储备状态不灵敏的问题，将送粉板在支撑轴轴向横截面上的外观设计呈三角形，并保持该三角形的一条边位于支撑轴半径延伸线在自身径向上的外沿部位，使该边所对的顶角指向支撑轴的旋转前行方向。这样，当送粉架旋转时，其送粉板将以尖角穿刺的方式在碳粉中穿行，其搅拌和传送碳粉的任务仍然可以通过送粉板的推送作用实现，其感知碳粉阻力的任务亦仍然通过送粉板所受的阻力来实现，送粉板所受的影响其传送特性的过大阻力因其尖角穿刺的运行方式而得以消解，而达到灵敏感知碳粉储备状态的目的。 The invention aims at the problem that the powder feeding plate is insensitive to detecting the state of the toner reserve due to too much resistance, and the design of the powder feeding plate on the axial cross section of the support shaft is triangular, and one side of the triangle is maintained at the support. The outer edge of the shaft radius extension line in its own radial direction is such that the apex angle of the edge is directed to the direction of rotation of the support shaft. In this way, when the powder feeding frame rotates, the powder feeding plate will pass through the toner in a sharp angle puncture manner, and the task of stirring and conveying the carbon powder can still be realized by the pushing action of the powder feeding plate, which senses the toner resistance. The task is still achieved by the resistance of the powder feeding board. The excessive resistance of the conveying board to the transmission characteristics is dissipated due to the operation mode of the sharp-point puncture, and the magnetic sensitive powder reserve state is achieved. purpose.
附图说明DRAWINGS
图1本发明激光打印机用碳粉盒透视图；Figure 1 is a perspective view of a toner cartridge for a laser printer of the present invention;
图2本发明激光打印机用碳粉盒局部透视图一；Figure 2 is a partial perspective view of a toner cartridge for a laser printer of the present invention;
图3本发明激光打印机用碳粉盒局部透视图二；Figure 3 is a partial perspective view of a toner cartridge for a laser printer of the present invention;
图4本发明激光打印机用碳粉盒局部透视图三；Figure 4 is a partial perspective view of a toner cartridge for a laser printer of the present invention;
图5本发明激光打印机用碳粉盒局部透视图四；Figure 5 is a partial perspective view of a toner cartridge for a laser printer of the present invention;
图6本发明激光打印机用碳粉盒之传动齿轮透视图；Figure 6 is a perspective view of a transmission gear of a toner cartridge for a laser printer of the present invention;
图7本发明激光打印机用碳粉盒之传动板透视图一；Figure 7 is a perspective view of a drive plate of a toner cartridge for a laser printer of the present invention;
图8本发明激光打印机用碳粉盒之传动板透视图二。Figure 8 is a perspective view of the drive plate of the toner cartridge for a laser printer of the present invention.
本发明的实施方式Embodiments of the invention
下面结合附图详细描述本发明激光打印机用碳粉盒。The toner cartridge for a laser printer of the present invention will be described in detail below with reference to the accompanying drawings.
参见图1～8，分别示出本发明激光打印机用碳粉盒及其构件在不同视角下的透视图。Referring to Figures 1 to 8, there are shown perspective views of a toner cartridge for a laser printer and members thereof according to the present invention at different viewing angles.
在碳粉盒100上，设置了用于容纳碳粉的其内部中空的碳粉仓101，用于导出碳粉仓101内所容装碳粉的出粉口102，同出粉口102毗邻的送粉辊103，位于送粉辊103附近的显影辊104。出粉口102、送粉辊103、显影辊104以碳粉仓101作为起始，沿着背对碳粉仓101的大约同一个方向依次排列在碳粉盒100的盒体105上。送粉辊103和显影辊104以其轴向相互平行的方式装设于盒体105上。出粉刀106架设于盒体105上，具***置为出粉口102的上半部，其用于调节显影辊表面碳粉厚度的刃口同显影辊104的辊面保持弹性接触状态。On the toner cartridge 100, a hollow toner cartridge 101 for accommodating the toner therein is disposed, and the powder outlet 102 for discharging the toner contained in the toner cartridge 101 is disposed adjacent to the powder outlet 102. The powder feed roller 103 is located at the developing roller 104 in the vicinity of the powder feed roller 103. The powder outlet 102, the powder feed roller 103, and the developing roller 104 are sequentially arranged on the casing 105 of the toner cartridge 100 in the same direction opposite to the toner cartridge 101, starting from the toner cartridge 101. The powder feed roller 103 and the developing roller 104 are attached to the casing 105 in such a manner that their axial directions are parallel to each other. The powder discharging knife 106 is mounted on the casing 105 at a specific position as the upper half of the powder discharging port 102, and the cutting edge for adjusting the thickness of the toner on the surface of the developing roller is kept in elastic contact with the roller surface of the developing roller 104.
在碳粉仓101中，架设有送粉架107。送粉架107在组成上包括支撑轴108、辐条109和送粉板110。辐条109的一端固定连接于支撑轴108上，另一端固定连接于送粉板110上。支撑轴108的轴向同显影辊104的轴向保持平行。送粉板110沿平行于支撑轴108中轴的方向延伸，直至其两端部几乎接近碳粉仓101的相应内壁。在支撑轴108的轴向横截面上，送粉板110的截面呈现为三角形。该三角形的一条边就是支撑轴108的半径延伸线在自身径向上的外边沿部分。该边所对的顶角在其所在的圆周上指向支撑轴108的旋转前行方向，即推动碳粉进入出粉口102的方向。In the toner hopper 101, a powder feeding frame 107 is placed. The powder feed rack 107 is composed of a support shaft 108, a spoke 109, and a powder feed plate 110. One end of the spoke 109 is fixedly coupled to the support shaft 108, and the other end is fixedly coupled to the powder feeding plate 110. The axial direction of the support shaft 108 is kept parallel to the axial direction of the developing roller 104. The powder feeding plate 110 extends in a direction parallel to the central axis of the support shaft 108 until its both end portions are almost close to the corresponding inner walls of the toner hopper 101. In the axial cross section of the support shaft 108, the cross section of the powder feed plate 110 appears as a triangle. One side of the triangle is the outer edge portion of the radius extension of the support shaft 108 in its own radial direction. The apex angle of the pair is directed on the circumference on which it is located toward the direction of rotation of the support shaft 108, that is, the direction in which the toner is pushed into the powder outlet 102.
在装配状态下，显影辊104、送粉辊103和送粉架107（送粉架107的支撑轴108）的各自的同向端都伸出至盒体105或者碳粉仓101的外部，并同传动齿轮组111中的相应齿轮连接。其中，送粉架107同传动齿轮组111中对应的传动齿轮112连接。传动齿轮组111受激光打印机传来的转矩作用，驱使显影辊104、送粉辊103和送粉架107形成各自的旋转，来完成显影辊104对感光鼓（图中未示出）承担的碳粉布设、送粉辊103对显影辊104承担的碳粉传递和送粉架107承担的碳粉储备状态感知、搅动碳粉使其蓬松和传送碳粉进入出粉口102的任务。In the assembled state, the respective opposite ends of the developing roller 104, the powder feeding roller 103, and the powder feeding frame 107 (the support shaft 108 of the powder feeding frame 107) protrude to the outside of the casing 105 or the toner hopper 101, and It is connected to a corresponding gear in the transmission gear set 111. The powder feeding frame 107 is connected to the corresponding transmission gear 112 of the transmission gear set 111. The transmission gear set 111 is subjected to a torque transmitted from the laser printer to drive the developing roller 104, the powder feeding roller 103 and the powder feeding frame 107 to form respective rotations, thereby completing the commitment of the developing roller 104 to the photosensitive drum (not shown). The toner is disposed, and the powder feeding roller 103 senses the toner transfer by the developing roller 104 and the state of the toner reserve state assumed by the powder feeding frame 107, agitates the carbon powder to make it fluffy, and transports the toner into the powder discharging port 102.
送粉架107承担的碳粉感知、搅动和传送的任务还需要其他的构件予以配合才能完成。这些构件包括传动齿轮112、传动板113和扭簧114。The task of toner sensing, agitation and transfer carried by the powder feeding rack 107 requires other components to be completed. These components include a transmission gear 112, a drive plate 113, and a torsion spring 114.
传动齿轮112具有圆框115的构造形式，其框内的辐板116上设置有扣件117和锁块118。The transmission gear 112 has a configuration of a circular frame 115, and a flange 117 and a lock block 118 are disposed on the web 116 in the frame.
传动板113是一块圆形板片，其板面上设置有扣件120，同时开凿有镂空的传动窗119。The drive plate 113 is a circular plate having a fastener 120 disposed on the plate surface and a hollow drive window 119.
在装配状态下，传动齿轮112可转动地安装于支撑轴108伸出于碳粉仓101外部的端头上，传动板113固定地安装于支撑轴108伸出于碳粉仓101外部的端头上，传动板113镶嵌于传动齿轮112的圆框115中，扭簧114套设于支撑轴108伸出于碳粉仓101外部的端头上，扭簧114的扭臂之一压抵于扣件117上而其扭臂之二压抵于扣件120上。In the assembled state, the transmission gear 112 is rotatably mounted on the end of the support shaft 108 that protrudes outside the toner hopper 101, and the transmission plate 113 is fixedly mounted to the end of the support shaft 108 that protrudes outside the toner hopper 101. The driving plate 113 is embedded in the circular frame 115 of the transmission gear 112. The torsion spring 114 is sleeved on the end of the supporting shaft 108 extending from the outside of the toner cartridge 101. One of the twisting arms of the torsion spring 114 is pressed against the buckle. The member 117 is attached to the fastener 120.
工作时，传动齿轮112受激光打印机主机驱动产生的旋转首先对扭簧114施加作用力，在碳粉仓101内容碳粉较少的状态下，送粉板110所受的碳粉阻力较小，扭簧114即可克服该阻力带动传动板113旋转，进而驱使支撑轴108带动送粉架107旋转，送粉架107在碳粉仓101内容碳粉较少时与传动齿轮112形成的近乎同步旋转的状态由支撑轴108传送至设置于支撑轴108另一端的探测板121上，进而再传递至激光打印机主机上，形成碳粉较少和补充碳粉的指示或判断；在碳粉仓101内容碳粉较多的状态下，送粉板110所受的碳粉阻力较大，扭簧114产生的扭力不能带动传动板113，扭簧114被压迫收缩直至传动齿轮112走过传动窗119对应的圆心角后，锁块118抵接于传动窗119的窗框上进而驱使支撑轴108带动送粉架107旋转，送粉架107在碳粉仓101内容碳粉较多时与传动齿轮112形成的滞后旋转的状态由支撑轴108传送至设置于支撑轴108另一端的探测板121上，进而再传递至激光打印机主机上，形成碳粉较多或充盈的指示或判断，进而保持激光打印机处于正常待机状态。During operation, the rotation of the transmission gear 112 by the laser printer main body first applies a force to the torsion spring 114. In the state where the toner cartridge 101 has less toner content, the powder feeding plate 110 receives less toner resistance. The torsion spring 114 can overcome the resistance to drive the transmission plate 113 to rotate, thereby driving the support shaft 108 to rotate the powder feeding frame 107, and the powder conveying frame 107 forms a nearly synchronous rotation with the transmission gear 112 when the toner cartridge 101 has less toner. The state is transmitted from the support shaft 108 to the detecting plate 121 disposed at the other end of the support shaft 108, and then transmitted to the laser printer main body to form an indication or judgment of less toner and replenishing toner; the content in the toner cartridge 101 In the state where the toner is large, the toner powder received by the powder feeding plate 110 has a large resistance, and the torsion force generated by the torsion spring 114 cannot drive the transmission plate 113, and the torsion spring 114 is pressed and contracted until the transmission gear 112 passes through the transmission window 119. After the central angle, the locking block 118 abuts against the window frame of the transmission window 119 to drive the support shaft 108 to rotate the powder feeding frame 107. The powder conveying frame 107 forms a hysteresis with the transmission gear 112 when the toner cartridge 101 has a large amount of toner. Rotating state Support shaft 108 is transmitted to the detection plate 121 is provided on the other end of the support shaft 108, and then further transmitted to the laser printer main body, is formed toner filling or more instructions or determined, and thus keep the laser printer is in the normal standby state.
工业实用性Industrial applicability
本发明针对激光打印机用碳粉盒送粉板因受阻力太大而致探测碳粉储备状态不灵敏的问题，将送粉板在支撑轴轴向横截面上的外观设计呈三角形，并保持该三角形的一条边位于支撑轴半径延伸线在自身径向上的外沿部位，使该边所对的顶角指向支撑轴的旋转前行方向。这样，当送粉架旋转时，其送粉板将以尖角穿刺的方式在碳粉中穿行，其搅拌和传送碳粉的任务仍然可以通过送粉板的推送作用实现，其感知碳粉阻力的任务亦仍然通过送粉板所受的阻力来实现，送粉板所受的影响其传送特性的过大阻力因其尖角穿刺的运行方式而得以消解，而达到灵敏感知碳粉储备状态的目的。 The invention is directed to the problem that the toner powder feeding plate for the laser printer is insensitive to detecting the state of the toner reserve due to too much resistance, and the design of the powder feeding plate on the axial cross section of the support shaft is triangular, and the One side of the triangle is located at the outer edge of the extension of the radius of the support shaft in its own radial direction, so that the apex angle of the edge is directed to the direction of rotation of the support shaft. In this way, when the powder feeding frame rotates, the powder feeding plate will pass through the toner in a sharp angle puncture manner, and the task of stirring and conveying the carbon powder can still be realized by the pushing action of the powder feeding plate, which senses the toner resistance. The task is still achieved by the resistance of the powder feeding board. The excessive resistance of the conveying board to the transmission characteristics is dissipated due to the operation mode of the sharp-point puncture, and the magnetic sensitive powder reserve state is achieved. purpose.

Claims (1)

  1. 激光打印机用碳粉盒，包括 Toner cartridge for laser printers, including
    显影辊、送粉辊、出粉刀、送粉架和碳粉仓；Developing roller, powder feeding roller, powder discharging knife, powder feeding frame and toner cartridge;
    所述显影辊和所述送粉辊以其轴向相互平行的方式装设于所述碳粉盒的盒体上；The developing roller and the powder feeding roller are mounted on the casing of the toner cartridge in such a manner that their axial directions are parallel to each other;
    所述碳粉仓是所述盒体内用于盛装碳粉的中空的空腔，所述送粉架包括支撑轴和通过辐条同所述支撑轴固定连接的送粉板，所述送粉架以其所述支撑轴平行于所述显影辊中轴的方式支承于所述碳粉仓中，所述送粉板在平行于所述支撑轴的方向上延伸；The toner hopper is a hollow cavity for containing toner in the casing, and the powder feeding frame comprises a support shaft and a powder feeding plate fixedly connected with the support shaft through the spokes, the powder feeding frame The support shaft is supported in the toner hopper in a manner parallel to the central axis of the developing roller, and the powder feeding plate extends in a direction parallel to the support shaft;
    其特征在于：It is characterized by:
    所述送粉板在所述支撑轴的轴向横截面上的外观呈三角形，所述三角形的一条边是所述支撑轴半径延伸线的外沿部分，所述边所对的顶角指向所述支撑轴的旋转前行方向。The appearance of the powder feeding plate on the axial cross section of the support shaft is triangular, and one side of the triangle is an outer edge portion of the extension line of the support shaft radius, and the apex angle of the edge is pointed to The direction of rotation of the support shaft.
PCT/CN2011/075743 2010-06-22 2011-06-14 Carbon powder cartridge for laser printer WO2011160556A1 (en)

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CN201707547U (en) * 2010-06-22 2011-01-12 珠海天威飞马打印耗材有限公司 Carbon powder box for laser printers
CN108375884A (en) * 2018-05-18 2018-08-07 浙江安吉华普电子有限公司 A kind of repeatable toner cartridge utilized of integral type
CN109725517B (en) * 2019-03-20 2023-12-19 珠海天威飞马打印耗材有限公司 Developer supply container

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CN101452246A (en) * 2007-12-03 2009-06-10 株式会社理光 Developing apparatus, toner box, processing box and image forming apparatus
CN201707547U (en) * 2010-06-22 2011-01-12 珠海天威飞马打印耗材有限公司 Carbon powder box for laser printers

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Publication number Priority date Publication date Assignee Title
JPH11119530A (en) * 1997-10-08 1999-04-30 Fuji Xerox Co Ltd Developing device
US6041196A (en) * 1997-10-27 2000-03-21 Canon Kabushiki Kaisha Developer detecting apparatus for detecting the position of an upper surface of developer contained in a container and process cartridge comprising such apparatus
CN101452246A (en) * 2007-12-03 2009-06-10 株式会社理光 Developing apparatus, toner box, processing box and image forming apparatus
CN201707547U (en) * 2010-06-22 2011-01-12 珠海天威飞马打印耗材有限公司 Carbon powder box for laser printers

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